US5090967A - Method and composition for providing an improved combustion in processes of combustion containing hydrocarbon compounds - Google Patents

Method and composition for providing an improved combustion in processes of combustion containing hydrocarbon compounds Download PDF

Info

Publication number
US5090967A
US5090967A US07/547,323 US54732390A US5090967A US 5090967 A US5090967 A US 5090967A US 54732390 A US54732390 A US 54732390A US 5090967 A US5090967 A US 5090967A
Authority
US
United States
Prior art keywords
peroxide
combustion
liquid
hydrogen peroxide
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/547,323
Inventor
Arne Lindstrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEMITEC AS
VITALE MILJOINVESTERINGER AS A NORWAY Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20360219&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US5090967(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US5090967A publication Critical patent/US5090967A/en
Assigned to LEMITEC AS reassignment LEMITEC AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LARSEN, OLE
Assigned to LARSEN, OLE reassignment LARSEN, OLE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINDSTROM, ARNE
Assigned to VITALE MILJOINVESTERINGER AS, A NORWAY CORPORATION reassignment VITALE MILJOINVESTERINGER AS, A NORWAY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINDSTROM, ARNE
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00Use of additives to fuels or fires for particular purposes
    • C10L10/02Use of additives to fuels or fires for particular purposes for reducing smoke development
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/02Engines characterised by their cycles, e.g. six-stroke
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/12Inorganic compounds
    • C10L1/1233Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
    • C10L1/1241Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof metal carbonyls
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/12Inorganic compounds
    • C10L1/1233Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
    • C10L1/1258Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof hydrogen peroxide, oxygenated water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/182Organic compounds containing oxygen containing hydroxy groups; Salts thereof
    • C10L1/1822Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
    • C10L1/1824Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14Direct injection into combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07004Injecting liquid or solid materials releasing oxygen, e.g. perchlorate, nitrate, peroxide, and chlorate compounds, or appropriate mixtures thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Definitions

  • the present invention refers to a method and a liquid composition which initiates and optomizes processes of combustion containing hydrocarbon compounds and by that reduces the content of injurious substances in the exhaust gases or discharges, at which a liquid composition containing a peroxide or peroxo compound is supplied to the air of combustion or the fuel-air mixture.
  • the primary cause of impure exhaust gases and high energy consumption is insufficent combustion.
  • the construction of the combustion process, the efficiency of the ignition system, the quality of the fuel and the fuel-air mixture determines how effective the combustion becomes and how much uncombusted and dangerous substances the gases contain.
  • Different techniques are used for reducing the amount of the substances, for examples recirculation systems and the well known catalyst technique, which provides a combustion of the exhaust gases outside the actual combustion process.
  • Combustion is the reaction of a substance with oxygen (O 2 ) with generation of heat.
  • Substances like carbon (C), hydrogen gas (H 2 ), hydrocarbons and sulphur (S) generate sufficent heat for maintaining their combustion temperature while for example nitrogen gas (N 2 ) requires a supply of heat for being oxidized.
  • each substance takes up a maximum amount of oxygen.
  • the end products are CO 2 (carbon dioxide), H 2 O (water), SO 2 and SO 3 (sulphur oxides) and somewhat NO and NO 2 (nitrogen oxides, NOx).
  • the sulphur and nitrogen oxides are responsible for a great deal of the acidification of the environment; they are injurious to inhale and especially the later steals energy from the combustion process.
  • Petrol is a mixture of hydrocarbons from crude oil with a boiling point in the interval 40°-200° C. About 2000 different hydrocarbons with 4-9 carbons are contained therein.
  • the detailed combustion process is very complicated also for simple substances.
  • the fuel molecules are decomposed to smaller units, of which most are so called free radicals, i.e. unstable molecules which quickly react with for example oxygen.
  • the most important radicals are the oxygen atom O: the hydrogen atom H and the hydroxyl radical OH. Especially the latter is of greatest importance for decomposing and oxidizing the fuel both through directly bonding to this and by removing hydrogen at which water is formed.
  • M is another molecule for example nitrogen or a wall or a spark plug electrode with surface which the water collides. Since water is a very stable molecule a high temperature is required for the decomposition to take place.
  • the better alternative is to add hydrogen peroxide which is decomposed in a similar way:
  • NO and NO 2 are very poisonous compounds, about four times as poisonous as carbon monoxide. At an acute poisoning the lung tissues are injured. NO is a non-desired by-product of combustion. In the presence of water NO is oxidized to HNO 3 and contributes in this form to about half of the acidification, the other half being caused by H 2 SO 4 . A problem is that NOx can decompose ozone in the upper part of the atmosphere.
  • SE-B-429.201 there is disclosed a liquid composition containing 1-10% by volume of hydrogen peroxide, at which the residual amount consists of water, aliphatic alcohol and lubricating oil and possibly a corrosion inhibitor, said liquid composition being supplied to the combustion air or the fuel-air mixture.
  • the residual amount consists of water, aliphatic alcohol and lubricating oil and possibly a corrosion inhibitor
  • said liquid composition being supplied to the combustion air or the fuel-air mixture.
  • an insufficient amount of OH-radicals are formed for reaction both with the fuel and the CO formed.
  • there is no self-ingnition of the fuel obtained at which the improvement of the combustion which is achieved as compared to the addition of only water is small.
  • the object of the present invention is to provide an improved combustion and by that a reduction of the discharge of injurious exhaust gases in connection with combustion processes containing hydrocarbon compounds, by an improved initiation of the combustion and maintainance of an optimum and complete combustion under so favourable conditions that the content of injurious exhaust gases is strongly reduced.
  • This has been achieved by the fact that to the combustion air or the fuel-air mixture there is supplied a liquid composition containing a peroxide or peroxo compound and water, at which a liquid composition is chosen which contains 10-80% by volume of the peroxide or peroxo compound.
  • the hydroxyl radicals which are formed can on one hand react with themselves and on the other hand with the superoxide ions or with hydrogen peroxide. These reactions involve that in turn hydrogen peroxide, oxygen gas and hydroperoxide radicals are formed according to the following reaction formulas:
  • pKa for the hydroperoxide radical is 4.88 ⁇ 0.10, which means that all hydroperoxide radicals are dissociated to superoxide ions.
  • Superoxide ions can also react with hydrogen peroxide, with themselves or act as catchers of singlett oxygen formed.
  • the coefficients of velocity for CO+OH ⁇ CO 2 +H has an unusual temperature dependence through its negative activation energy and high coefficient of temperature. It can be written 4.4 ⁇ 10 6 T 1 .5 exp(3.1/RT). The reaction velocity will then be almost constant about 10 11 cm 3 /mol.s at temperatures lower than 1000° K., i.e. all the way down to room temperature. At higher temperatures than 1000° K. the reaction velocity is increased sometimes. Thanks to this, reaction is the completely dominating for converting CO to CO 2 at combustion of hydrocarbons. The early and complete combustion of CO improves by that the thermal efficiency.
  • H 2 O 2 is used which is dissociated at about 500° C. They have a life time of maximum 20 ms.
  • the liquid composition is supplied so that there will be no chemical reaction, from the liquid container to the combustion room, i.e. decomposition of hydrogen peroxide to water and oxygen gas will not take place but the liquid will in intact condition reach the combustion directly or alternatively to a prechamber were a mixture of the liquid and the fuel is ignited outside the actual combustion room.
  • the concentration of hydrogen peroxide is sufficiently high (about 35%) a self-ignition of the fuel can take place as well as maintainance of the combustion.
  • the ignition of the liquid-fuel mixture can take place through self ignition or by contact with a catalyzing surface, at which spark plugs or the like are not required.
  • the ignition can also take place through ignition with heat energy, for example a spark plug, glow body, open flame or the like.
  • Admixture of an aliphatic alcohol to hydrogen peroxide can initiate self-ignition. Especially in pre-chamber systems this can be desireable, at which the hydrogen peroxide and the alcohol may not be allowed to mix before they reach the pre-chamber.
  • the liquid composition can besides peroxide and water also contain up to 70% of an aliphatic alcohol with 1-8 carbons and up to 5% of an oil containing a corrosion inhibitor.
  • the amount of a mixture of the liquid composition to the fuel can very from some tenth part of the percent liquid composition per amount of fuel up to some hundred %.
  • the higher amounts are used i.a. for fuels which are difficult to ignite.
  • the liquid composition is intended to be used in combustion engines and other combustion processes containing hydrocarbon compounds like oil, coal, biomass etc. in combustion furnaces for providing a more complete combustion and a reduction of the contents of injurious substances in the discharges.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Air Bags (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Incineration Of Waste (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Treating Waste Gases (AREA)

Abstract

A method and a composition for providing an improved combustion containing hydrocarbon compounds in order to reduce the content of injurious substances in the exhaust gases/discharges, at which a liquid composition containing 10-80% by volume of a peroxide or peroxo compound is added to the air of combustion or the fuel-air mixture respectively.

Description

This is a continuation of application Ser. No. 07/358,365 filed on May 9, 1989, now abandoned.
TECHNICAL FIELD
The present invention refers to a method and a liquid composition which initiates and optomizes processes of combustion containing hydrocarbon compounds and by that reduces the content of injurious substances in the exhaust gases or discharges, at which a liquid composition containing a peroxide or peroxo compound is supplied to the air of combustion or the fuel-air mixture.
BACKGROUND OF THE INVENTION
In recent years attention has been paid to the environmental contamination and the high energy consumption especially due to the dramatically occuring forest death. Exhaust gases have however always been a problem in population centers. Despite continuously improved engines and heating techniques with less discharges or exhaust gases, the increasing numbers of vehicles and incineration plants have resulted in a total increase of the amount of exhaust gases.
The primary cause of impure exhaust gases and high energy consumption is insufficent combustion. The construction of the combustion process, the efficiency of the ignition system, the quality of the fuel and the fuel-air mixture determines how effective the combustion becomes and how much uncombusted and dangerous substances the gases contain. Different techniques are used for reducing the amount of the substances, for examples recirculation systems and the well known catalyst technique, which provides a combustion of the exhaust gases outside the actual combustion process.
Combustion is the reaction of a substance with oxygen (O2) with generation of heat. Substances like carbon (C), hydrogen gas (H2), hydrocarbons and sulphur (S) generate sufficent heat for maintaining their combustion temperature while for example nitrogen gas (N2) requires a supply of heat for being oxidized.
At a high temperature, 1200°-2500° C. and a sufficient amount of oxygen a complete combustion is achieved, i.e. each substance takes up a maximum amount of oxygen. The end products are CO2 (carbon dioxide), H2 O (water), SO2 and SO3 (sulphur oxides) and somewhat NO and NO2 (nitrogen oxides, NOx). The sulphur and nitrogen oxides are responsible for a great deal of the acidification of the environment; they are injurious to inhale and especially the later steals energy from the combustion process.
It is also possible to obtain cold flames, for example the blue, flattering flame from a candle which is going out, where the temperature is only about 400° C. The oxidation will then not be complete but the end products can be H2 O2 (hydrogen peroxide), CO (carbon monoxide) and possibly C (soot). The two last mentioned substances are, like NO, injurious and can give off more energy at a complete combustion.
Petrol is a mixture of hydrocarbons from crude oil with a boiling point in the interval 40°-200° C. About 2000 different hydrocarbons with 4-9 carbons are contained therein.
The detailed combustion process is very complicated also for simple substances. The fuel molecules are decomposed to smaller units, of which most are so called free radicals, i.e. unstable molecules which quickly react with for example oxygen.
The most important radicals are the oxygen atom O: the hydrogen atom H and the hydroxyl radical OH. Especially the latter is of greatest importance for decomposing and oxidizing the fuel both through directly bonding to this and by removing hydrogen at which water is formed.
In the beginning of the initiation of the combustion water is decomposed from these according to the reaction
H.sub.2 O+M→H.+OH.+M
where M is another molecule for example nitrogen or a wall or a spark plug electrode with surface which the water collides. Since water is a very stable molecule a high temperature is required for the decomposition to take place. The better alternative is to add hydrogen peroxide which is decomposed in a similar way:
H.sub.2 O.sub.2 +M→2OH.+M
This reaction takes place much easier and at a lower temperature, especially on surfaces at which the ignition of the fuel-air mixture occurs easier and in a more controlled way. A further positive effect of the reaction of a surface is that hydrogen peroxide easily reacts with soot and tar on walls and spark plugs to carbon dioxide (CO2) which gives clean electrode surfaces and a better spark.
If both hydrogen peroxide and water is added a drastic reduction of CO in the exhaust gases is provided according to the following:
CO+O.sub.2 →CO.sub.2+ O: initiation                 1)
O:+H.sub.2 O→2OH. branching                         2)
OH.+CO→CO.sub.2 +H. propagation                     3)
H.+O.sub.2 →OH.+O: branching                        4)
From the reaction 2) we can see that water plays a catalyzing role by later being reformed. Due to that hydrogen peroxide gives a many thousand times higher content of OH-radicals than water step 3) will be considerably accelerated and remove the most of CO formed. By that additional energy is set free which helps to maintain the combustion.
NO and NO2 are very poisonous compounds, about four times as poisonous as carbon monoxide. At an acute poisoning the lung tissues are injured. NO is a non-desired by-product of combustion. In the presence of water NO is oxidized to HNO3 and contributes in this form to about half of the acidification, the other half being caused by H2 SO4. A problem is that NOx can decompose ozone in the upper part of the atmosphere.
A great part of NO comes from the reaction between the oxygen and nitrogen of the air at a high temperature and is therefore independent of the composition of the fuel. How much NOx that is formed is besides dependant of during which conditions the combustion takes place. If the temperature reduction can take place very slowly this leads to an equilibrum at moderate high temperatures and a lower final concentration of NO.
The following methods can be used for keeping the formation of low NO
1. Combustion in two steps of a fuel rich mixture
2. Low combustion temperature through
a) high excess of air
b) strong cooling
c) re-circulation of the combustion gases
In the chemical analysis of flames it has often been observed that the concentration of NO in the flame is much higher than thereafter. There is a process which decomposes NO. A probable reaction is: ##STR1## Thus the formation of N2 is supported by conditions which give high concentrations of CH3, viz. a hot, fuel rich flame.
Fuels containing nitrogen, for example in the form of heterocyclic hydrocarbons like pyridine from experience gives off more NO.
The content of N in different fuels (approximatively):
______________________________________                                    
       Crude oil                                                          
               0.65%                                                      
       Asphalt 2.30%                                                      
       Heavy oils                                                         
               1.40%                                                      
       Light oils                                                         
               0.07%                                                      
       Carbon  1-2%                                                       
______________________________________                                    
In SE-B-429.201 there is disclosed a liquid composition containing 1-10% by volume of hydrogen peroxide, at which the residual amount consists of water, aliphatic alcohol and lubricating oil and possibly a corrosion inhibitor, said liquid composition being supplied to the combustion air or the fuel-air mixture. At such low contents of hydrogen peroxide an insufficient amount of OH-radicals are formed for reaction both with the fuel and the CO formed. Besides there is no self-ingnition of the fuel obtained, at which the improvement of the combustion which is achieved as compared to the addition of only water is small.
In DE-A-2.362.082 there is described admixture of an oxidizing agent, for example hydrogen peroxide, in connection with combustion, however the hydrogen peroxide is decomposed to water and oxygen by means of a catalyst before it is supplied to the combustion air.
THE PURPOSE AND MOST IMPORTANT FEATURES OF THE INVENTION
The object of the present invention is to provide an improved combustion and by that a reduction of the discharge of injurious exhaust gases in connection with combustion processes containing hydrocarbon compounds, by an improved initiation of the combustion and maintainance of an optimum and complete combustion under so favourable conditions that the content of injurious exhaust gases is strongly reduced. This has been achieved by the fact that to the combustion air or the fuel-air mixture there is supplied a liquid composition containing a peroxide or peroxo compound and water, at which a liquid composition is chosen which contains 10-80% by volume of the peroxide or peroxo compound.
DESCRIPTION OF THE INVENTION
Under alkaline conditions hydrogen peroxide is decomposed to hydroxyl radicals and superoxide ions according to
H.sub.2 O.sub.2 +HO.sub.2 →HO.+O.sub.2 +H.sub.2 O
The hydroxyl radicals which are formed can on one hand react with themselves and on the other hand with the superoxide ions or with hydrogen peroxide. These reactions involve that in turn hydrogen peroxide, oxygen gas and hydroperoxide radicals are formed according to the following reaction formulas:
HO.+HO.→H.sub.2 O.sub.2
HO.+O.sub.2.sup.-.→.sup.3 O.sub.2 +OH.sup.-
HO.+H.sub.2 O.sub.2 →HO.sub.2.+H.sub.2 O
It is known that pKa for the hydroperoxide radical is 4.88±0.10, which means that all hydroperoxide radicals are dissociated to superoxide ions. Superoxide ions can also react with hydrogen peroxide, with themselves or act as catchers of singlett oxygen formed.
O.sub.2.sup.-.+H.sub.2 O.sub.2 →O.sub.2 +HO.+OH.sup.-
O.sub.2.sup.-.+O.sub.2.sup.-.+H.sub.2 O→.sup.1 O.sub.2 +HO.sub.2.sup.- +OH.sup.-
O.sub.2.sup.-.+.sup.1 O.sub.2 →.sup.3 O.sub.2 +O.sub.2.sup.-.+22 kcal
Thus there is formed oxygen gas and hydroxyl radicals and singlett oxygen and hydrogen peroxide and triplett oxygen and an energy waste of 22 kcal. It has also proved that heavy metal ions present at the catalytic decomposition of hydrogen peroxide gives hydroxyl radicals and superoxide ions.
From what has been said and known before, the following knowledge about the ccoefficients of velocity is presented, for example as follows with a typical alkane from petrol.
The coefficients of velocity for attacking n-octane with H, O and OH;
______________________________________                                    
k = A exp(E/RT)                                                           
Reaction        A(cm.sup.3 /mol:s)                                        
                           E(kJ/mol)                                      
______________________________________                                    
n-C.sub.8 H.sub.18                                                        
         + H        7.1:10.sup.14                                         
                               35.3                                       
         + O        1.8:10.sup.14                                         
                               19.0                                       
         + OH       2.0:10.sup.13                                         
                                3.9                                       
______________________________________                                    
From the example we can see that the attack from the OH-radical can take place quicker and at a lower temperature than from H and O.
The coefficients of velocity for CO+OH→CO2 +H has an unusual temperature dependence through its negative activation energy and high coefficient of temperature. It can be written 4.4·106 T1.5 exp(3.1/RT). The reaction velocity will then be almost constant about 1011 cm3 /mol.s at temperatures lower than 1000° K., i.e. all the way down to room temperature. At higher temperatures than 1000° K. the reaction velocity is increased sometimes. Thanks to this, reaction is the completely dominating for converting CO to CO2 at combustion of hydrocarbons. The early and complete combustion of CO improves by that the thermal efficiency.
An example illustrates the antagonism between O2 and OH are the reactions NH3 --H2 O2 --NO where an addition of H2 O2 gives a 90% reduction of NOx in oxygen-free environment. If on the other hand O2 is present, even at only 2%, the NOx reduction is drastically detoriated.
For providing OH-radicals according to the invention H2 O2 is used which is dissociated at about 500° C. They have a life time of maximum 20 ms.
At a normal combustion of ethanol 70% of the fuel is consumed by a reaction with OH-radicals and 30% with H-atoms. The invention which already at the initiation of the combustion supplies OH-radicals improves the combustion dramatically by immediately attacking the fuel. By adding a liquid composition with a high content of hydrogen peroxide (over 10%) there is yet sufficient OH-radicals for immediately oxidizing the CO formed. At lower contents of hydrogen peroxide there are not sufficient OH-radicals formed for reacting both the fuel and with the CO.
The liquid composition is supplied so that there will be no chemical reaction, from the liquid container to the combustion room, i.e. decomposition of hydrogen peroxide to water and oxygen gas will not take place but the liquid will in intact condition reach the combustion directly or alternatively to a prechamber were a mixture of the liquid and the fuel is ignited outside the actual combustion room.
If the concentration of hydrogen peroxide is sufficiently high (about 35%) a self-ignition of the fuel can take place as well as maintainance of the combustion. The ignition of the liquid-fuel mixture can take place through self ignition or by contact with a catalyzing surface, at which spark plugs or the like are not required. The ignition can also take place through ignition with heat energy, for example a spark plug, glow body, open flame or the like.
Admixture of an aliphatic alcohol to hydrogen peroxide can initiate self-ignition. Especially in pre-chamber systems this can be desireable, at which the hydrogen peroxide and the alcohol may not be allowed to mix before they reach the pre-chamber.
By arranging an injection valve for the liquid composition for each cylinder a very exact and for all service conditions adapted dosing of the liquid is provided. By means of a control unit which controls the injection valves and a number of signal transmittors connected to the motor, which gives signals to the control unit representing the position of the crank axel, motor speed and load and possibly also the temperature of the ingas, there is made possible a sequential injection and synchronization with the opening and closing of the injection valves and dosing of the liquid not only dependent on the load and desired power output, but also of the motor speed and the temperature of the injection air, which gives a good runnability under all conditions. The liquid mixture to a certain degree replaces the air supply.
A number of comparative tests have been performed for finding out the differences in effect between water and hydrogen peroxide mixtures (23- respectively 35%). The loads which were chosen correspond to driving on motor highways and in cities. The test motor was a B20E connected to a waterbrake. The motor was warmed up before the tests started.
At motor highway load the emissions of NOx as well as CO and HC increased when hydrogen peroxide was exchanged for water. The contents of NOx were reduced with an increased amount of hydrogen peroxide. Also water reduced the NOx-contents, however at this load four times as much water as 23% hydrogen peroxide was required for achieving the same reduction of the NOx-contents.
In city-traffic load 35% hydrogen peroxide was firstly supplied, at which the motorspeed and moment were somewhat increased (20-30 RPM/0.5-1 Nm).
At a change to 23% hydrogen peroxide the motor speed and moment were decreased at the same time as the NOx-content was increased. When supplying pure water it was difficult to keep the motor running. The HC-content was strikingly increased.
Thus the hydrogen peroxide improved the combustion at the same time as the NOx-contents were reduced. Tests performed at the Swedish Motor-vehicle Inspectorate on a SAAB 900i and a Volvo 760 Turbo with and without a mixture to the fuel of 35% hydrogen peroxide gave the following results with respect to the emission of CO, HC, NOx and CO2. The percentage states the result obtained with a mixture of hydrogen peroxide in relation the result without a mixture.
__________________________________________________________________________
SAAB 900i                                                                 
                               HCD                                        
Cold starting                                                             
        Warm starting                                                     
                Warm driving                                              
                        Idle running                                      
                               (road driving)                             
__________________________________________________________________________
CO: -23%                                                                  
        CO: -54%                                                          
                CO: -76%                                                  
                        CO:                                               
                           -90%                                           
                               CO: -41%                                   
HC:  +6%                                                                  
        HC:  ±0%                                                       
                HC:  -7%                                                  
                        HC:                                               
                           -50%                                           
                               HC:  +8%                                   
NOx:                                                                      
    -25%                                                                  
        NOx:                                                              
            -12%                                                          
                NOx:                                                      
                    -23%       NOx:                                       
                                   -15%                                   
CO.sub.2 :                                                                
    +33%                                                                  
        CO.sub.2 :                                                        
             +4%                                                          
                CO.sub.2 :                                                
                     +5%       CO.sub.2 :                                 
                                    +3%                                   
__________________________________________________________________________
______________________________________                                    
VOLVO 760 Turbo                                                           
Idle running           Warm driving                                       
______________________________________                                    
CO:        -73%        CO:     -54.3%                                     
HC:        -18%        HC:     -2.3%                                      
NOx:       -21%        NOx:    -8.3%                                      
______________________________________                                    
At tests performed with a Volvo 245 GL 4FK/84 the car had at idle running a CO-content of 4% and a HC-content of 65 ppm without pulse air (exhaust gas cleaning). With the admixture of a 35% solution of hydrogen peroxide the CO-content was reduced to 0.05% and the HC-content to 10 ppm. The ignition timing was 10° and the idling R.P.M. was 950 in both cases.
At tests performed by the Norwegian Marine Technichal Research Institute A/S in Trondheim the emission of HC, CO and NOx was examined for a Volvo 760 Turbo after ECE-Regulation No. 15.03 with warm engine at starting with and without a mixture of a 35% solution of hydrogen peroxide to the combustion.
______________________________________                                    
Test results:    ECE 15.03    Idle running                                
______________________________________                                    
Without hydrogen peroxide                                                 
                 HC      4.3 g/test                                       
                                  340 ppm                                 
                 CO       70 g/test                                       
                                  0.64%                                   
                 NOx     4.8 g/test                                       
                                   92 ppm                                 
With admixture of a 35%                                                   
                 HC      4.2 g/test                                       
                                  280 ppm                                 
solution of hydrogen per-                                                 
                 CO       32 g/test                                       
                                  0.17%                                   
oxide            NOx     4.4 g/test                                       
                                   73 ppm                                 
______________________________________                                    
Only the use of hydrogen peroxide has been mentioned above. It can however be assumed that a corresponding effect is achieved also with other peroxides and peroxo compounds inorganic as well as organic.
The liquid composition can besides peroxide and water also contain up to 70% of an aliphatic alcohol with 1-8 carbons and up to 5% of an oil containing a corrosion inhibitor.
The amount of a mixture of the liquid composition to the fuel can very from some tenth part of the percent liquid composition per amount of fuel up to some hundred %. The higher amounts are used i.a. for fuels which are difficult to ignite.
The liquid composition is intended to be used in combustion engines and other combustion processes containing hydrocarbon compounds like oil, coal, biomass etc. in combustion furnaces for providing a more complete combustion and a reduction of the contents of injurious substances in the discharges.

Claims (18)

I claim:
1. A method for providing an improved combustion in processes of combustion containing hydrocarbon compounds in order to reduce the content of injurious substances in the exhaust gases/discharges, comprising the step of adding a liquid composition containing a peroxide or peroxo-compound and water to the air of combustion or the fuel-air mixture respectively, characterized in that said liquid composition contains more than 10 and up to 80% by volume peroxide or peroxo-compound, and is introduced into the combustion chamber or alternatively is introduced into a pre-chamber, where a mixture of the fuel and the liquid composition is ignited outside the acutal combustion chamber, said introduction being separate from the fuel whereby it is without previous decomposition of the peroxide or peroxo-compound.
2. A method as claimed in claim 1,
characterized in that an aliphatic alcohol with 1-8 carbons is introduced into the pre-chamber separately and which alcohol when mixed with the liquid composition causes self ignition of the fuel.
3. A method according to claim 1, characterized in that said liquid is an aqueous liquid.
4. A method as claimed in claim 3,
characterized in that said liquid contains up to 70% of an aliphatic alcohol with 1-8 carbons.
5. A method according to claim 3,
characterized in that said liquid contains up to 5% of an oil containing a corrosion inhibitor.
6. A method as claimed in claim 3,
characterized in that said liquid contains at least 30% peroxide or peroxo compound.
7. A method as claimed in claim 3,
characterized in that said peroxide is hydrogen peroxide.
8. A method according to claim 4,
characterized in that said liquid contains up to 5% of an oil containing a corrosion inhibitor.
9. A method as claimed in claim 4,
characterized in that said liquid contains at least 30% peroxide or peroxo compound.
10. A method as claimed in claim 5,
characterized in that said liquid contains at least 30% peroxide or peroxo compound.
11. A method as claimed in claim 4,
characterized in that said peroxide is hydrogen peroxide.
12. A method as claimed in claim 5,
characterized in that said peroxide is hydrogen peroxide.
13. A method as claimed in claim 6,
characterized in that said peroxide is hydrogen peroxide.
14. A method as claimed in claim 1,
characterized in that said liquid composition comprises water, said peroxide or peroxo compound, up to 70% of an aliphatic alcohol with 1-8 carbons and up to 5% of an oil containing a corrosion inhibitor.
15. A method as claimed in claim 14,
characterized in that said peroxide is hydrogen peroxide.
16. A method as claimed in claim 15,
characterized in that said liquid composition contains at least 30% peroxide.
17. A method as claimed in claim 3,
characterized in that said liquid composition contains at least 23% peroxide.
18. A method as claimed in claim 1,
characterized in that said liquid contains at least 23% peroxide.
US07/547,323 1985-05-14 1986-11-12 Method and composition for providing an improved combustion in processes of combustion containing hydrocarbon compounds Expired - Fee Related US5090967A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8502388A SE8502388L (en) 1985-05-14 1985-05-14 SET AND LIQUID COMPOSITION FOR OPTIMIZATION OF FUEL COMBUSTION TO ENGINES AND BOILERS
SE8502388 1985-05-14

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07358365 Continuation 1989-05-09

Publications (1)

Publication Number Publication Date
US5090967A true US5090967A (en) 1992-02-25

Family

ID=20360219

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/547,323 Expired - Fee Related US5090967A (en) 1985-05-14 1986-11-12 Method and composition for providing an improved combustion in processes of combustion containing hydrocarbon compounds

Country Status (16)

Country Link
US (1) US5090967A (en)
EP (1) EP0333704B1 (en)
JP (1) JP2511089B2 (en)
KR (2) KR897000157A (en)
CN (1) CN1024016C (en)
AT (1) ATE79392T1 (en)
AU (1) AU609383B2 (en)
BR (1) BR8607369A (en)
DE (1) DE3686422T2 (en)
DK (1) DK170226B1 (en)
FI (1) FI104508B (en)
NO (1) NO174301C (en)
PT (1) PT86122B (en)
RU (1) RU2027036C1 (en)
SE (1) SE8502388L (en)
WO (1) WO1988003550A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976978A1 (en) * 1998-02-23 2000-02-02 Ueno, Shinji Combustion method in combustion device
US6739289B2 (en) 2002-04-26 2004-05-25 Caterpillar Inc Method and apparatus for providing a hydrogen enriched fuel to combustion prechamber
WO2009086933A1 (en) * 2008-01-09 2009-07-16 Peter Jeney Fuel composition on h2o2-basis, method for producing such a fuel composition and devices for its utilization
US8810053B2 (en) 2012-02-29 2014-08-19 Ini Power Systems, Inc. Method and apparatus for efficient fuel consumption
USD733052S1 (en) 2012-12-20 2015-06-30 Ini Power Systems, Inc. Flexible fuel generator
US9175601B2 (en) 2012-01-04 2015-11-03 Ini Power Systems, Inc. Flex fuel field generator
US9188033B2 (en) 2012-01-04 2015-11-17 Ini Power Systems, Inc. Flexible fuel generator and methods of use thereof
US9909534B2 (en) 2014-09-22 2018-03-06 Ini Power Systems, Inc. Carbureted engine having an adjustable fuel to air ratio
US10030609B2 (en) 2015-11-05 2018-07-24 Ini Power Systems, Inc. Thermal choke, autostart generator system, and method of use thereof
USD827572S1 (en) 2015-03-31 2018-09-04 Ini Power Systems, Inc. Flexible fuel generator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2056727B1 (en) * 1992-10-28 1995-05-01 Adrian Jesus Ramirez FORMULA AND MANUFACTURING PROCEDURE OF A UNIVERSAL CATALYST AND ECONOMIZER PRODUCT FOR HYDROCARBON POWERED ENGINES.
CN1037695C (en) * 1992-12-11 1998-03-11 张修智 Fuel power saving additive containing organic peroxide, aromatic ester and hydrocarbon mixture
DE19632179A1 (en) 1996-08-09 1998-02-12 Ludo De Ir Clercq Internal combustion engine with extended duty cycle
US7744827B2 (en) 2004-02-13 2010-06-29 United Technologies Corporation Catalytic treatment of fuel to impart coking resistance
EP2049455A1 (en) * 2006-07-13 2009-04-22 Peter Jeney Fuel on h2o2-basis and apparatus for its utilization as rocket fuel and fuel for rotor tip engines
RU2551358C1 (en) * 2014-03-03 2015-05-20 Хасан Амаевич Тайсумов Aircraft fuel gel
US9482192B2 (en) * 2015-01-02 2016-11-01 Caterpillar Inc. Stable combustion in spark-ignited lean-burn engine
WO2016120723A2 (en) * 2015-01-29 2016-08-04 Radical Combustion Limited System and method for controlled compression ignition reactions
RU2611542C1 (en) * 2015-11-09 2017-02-28 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" Testing method on fuel mixture in heat ice evaluating of preparation and combustion processes perfection

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB673125A (en) * 1949-02-03 1952-06-04 Standard Oil Dev Co Improvements in or relating to diesel fuel compositions
JPS50105569A (en) * 1973-12-18 1975-08-20
US4045188A (en) * 1975-12-29 1977-08-30 Hirschey Kenneth A Fuel additives for internal combustion engines
FR2406723A1 (en) * 1977-10-21 1979-05-18 Mellqvist Allan IC engine fuel additive sprayed into intake manifold - is based on aliphatic alcohol, lubricating oil, rust inhibitor and hydrogen peroxide
US4185960A (en) * 1977-04-08 1980-01-29 Interox Super-oxidized solid sodium perborate and processes for its manufacture
US4294586A (en) * 1980-06-05 1981-10-13 Cox Jr Charles P Gasoline and diesel fuel additive
US4298351A (en) * 1980-05-05 1981-11-03 Prime Manufacturing Company Methanol automotive fuel
US4359969A (en) * 1978-05-22 1982-11-23 Allan Mellovist Method of improving the combustion of fuel containing hydrocarbon compounds in the combustion chamber or chambers of internal combustion engines, and a liquid composition for carrying the method into effect
US4406812A (en) * 1980-12-04 1983-09-27 Chemed Corporation Deodorant and reconditioner for metal working fluids
US4406254A (en) * 1982-02-10 1983-09-27 General Motors Corporation Method for lean operation of spark-ignited gasoline-fueled reciprocating engine
EP0188786A1 (en) * 1985-01-11 1986-07-30 BASF Aktiengesellschaft Motor fuels
EP0189642A1 (en) * 1984-12-04 1986-08-06 Fuel Tech, Inc. Fuel additives and fuel containing soluble platinum group metal compounds and use in internal combustion engines
SU1325183A1 (en) * 1985-08-08 1987-07-23 Государственный научно-исследовательский институт автомобильного транспорта Gasifier of motor fuel
US4684373A (en) * 1986-07-31 1987-08-04 Wynn Oil Company Gasoline additive composition
US4797134A (en) * 1987-08-27 1989-01-10 Wynn Oil Company Additive composition, for gasoline

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US929503A (en) * 1909-05-13 1909-07-27 George B Selden Fuel.
US3460901A (en) * 1965-06-11 1969-08-12 Exxon Research Engineering Co Method and apparatus for treating automotive exhaust gas
US3503704A (en) * 1966-10-03 1970-03-31 Alvin M Marks Method and apparatus for suppressing fumes with charged aerosols

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB673125A (en) * 1949-02-03 1952-06-04 Standard Oil Dev Co Improvements in or relating to diesel fuel compositions
JPS50105569A (en) * 1973-12-18 1975-08-20
US4045188A (en) * 1975-12-29 1977-08-30 Hirschey Kenneth A Fuel additives for internal combustion engines
US4185960A (en) * 1977-04-08 1980-01-29 Interox Super-oxidized solid sodium perborate and processes for its manufacture
FR2406723A1 (en) * 1977-10-21 1979-05-18 Mellqvist Allan IC engine fuel additive sprayed into intake manifold - is based on aliphatic alcohol, lubricating oil, rust inhibitor and hydrogen peroxide
US4359969A (en) * 1978-05-22 1982-11-23 Allan Mellovist Method of improving the combustion of fuel containing hydrocarbon compounds in the combustion chamber or chambers of internal combustion engines, and a liquid composition for carrying the method into effect
US4386938A (en) * 1980-05-05 1983-06-07 Prime Manufacturing Company Methanol automotive fuel
US4298351A (en) * 1980-05-05 1981-11-03 Prime Manufacturing Company Methanol automotive fuel
US4294586A (en) * 1980-06-05 1981-10-13 Cox Jr Charles P Gasoline and diesel fuel additive
US4406812A (en) * 1980-12-04 1983-09-27 Chemed Corporation Deodorant and reconditioner for metal working fluids
US4406254A (en) * 1982-02-10 1983-09-27 General Motors Corporation Method for lean operation of spark-ignited gasoline-fueled reciprocating engine
EP0189642A1 (en) * 1984-12-04 1986-08-06 Fuel Tech, Inc. Fuel additives and fuel containing soluble platinum group metal compounds and use in internal combustion engines
EP0188786A1 (en) * 1985-01-11 1986-07-30 BASF Aktiengesellschaft Motor fuels
SU1325183A1 (en) * 1985-08-08 1987-07-23 Государственный научно-исследовательский институт автомобильного транспорта Gasifier of motor fuel
US4684373A (en) * 1986-07-31 1987-08-04 Wynn Oil Company Gasoline additive composition
US4797134A (en) * 1987-08-27 1989-01-10 Wynn Oil Company Additive composition, for gasoline

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976978A1 (en) * 1998-02-23 2000-02-02 Ueno, Shinji Combustion method in combustion device
EP0976978A4 (en) * 1998-02-23 2001-04-25 Ueno Shinji Combustion method in combustion device
US6739289B2 (en) 2002-04-26 2004-05-25 Caterpillar Inc Method and apparatus for providing a hydrogen enriched fuel to combustion prechamber
WO2009086933A1 (en) * 2008-01-09 2009-07-16 Peter Jeney Fuel composition on h2o2-basis, method for producing such a fuel composition and devices for its utilization
US20110002817A1 (en) * 2008-01-09 2011-01-06 Peter Jeney Fuel composition on h2o2-basis, method for producing such a fuel composition and devices for its utilization
US9188033B2 (en) 2012-01-04 2015-11-17 Ini Power Systems, Inc. Flexible fuel generator and methods of use thereof
US9175601B2 (en) 2012-01-04 2015-11-03 Ini Power Systems, Inc. Flex fuel field generator
US9995248B2 (en) 2012-01-04 2018-06-12 Ini Power Systems, Inc. Flex fuel field generator
US8810053B2 (en) 2012-02-29 2014-08-19 Ini Power Systems, Inc. Method and apparatus for efficient fuel consumption
US9450450B2 (en) 2012-02-29 2016-09-20 Ini Power Systems, Inc. Method and apparatus for efficient fuel consumption
USD733052S1 (en) 2012-12-20 2015-06-30 Ini Power Systems, Inc. Flexible fuel generator
USD794562S1 (en) 2012-12-20 2017-08-15 Ini Power Systems, Inc. Flexible fuel generator
US9909534B2 (en) 2014-09-22 2018-03-06 Ini Power Systems, Inc. Carbureted engine having an adjustable fuel to air ratio
USD827572S1 (en) 2015-03-31 2018-09-04 Ini Power Systems, Inc. Flexible fuel generator
US10030609B2 (en) 2015-11-05 2018-07-24 Ini Power Systems, Inc. Thermal choke, autostart generator system, and method of use thereof
US11274634B2 (en) 2015-11-05 2022-03-15 Ini Power Systems, Inc. Thermal choke, autostart generator system, and method of use thereof
US11655779B2 (en) 2015-11-05 2023-05-23 The Dewey Electronics Corporation Thermal choke, autostart generator system, and method of use thereof

Also Published As

Publication number Publication date
DK388988D0 (en) 1988-07-12
AU6739187A (en) 1988-06-01
CN87107774A (en) 1988-07-20
AU609383B2 (en) 1991-05-02
PT86122B (en) 1990-08-31
RU2027036C1 (en) 1995-01-20
WO1988003550A1 (en) 1988-05-19
SE8502388D0 (en) 1985-05-14
KR950002348B1 (en) 1995-03-16
FI104508B (en) 2000-02-15
ATE79392T1 (en) 1992-08-15
NO174301B (en) 1994-01-03
NO174301C (en) 1996-12-18
JPH02500443A (en) 1990-02-15
CN1024016C (en) 1994-03-16
FI892219A0 (en) 1989-05-09
DE3686422T2 (en) 1993-04-08
KR897000157A (en) 1989-03-10
DK388988A (en) 1988-07-12
NO882901L (en) 1988-06-29
EP0333704A1 (en) 1989-09-27
NO882901D0 (en) 1988-06-29
BR8607369A (en) 1989-10-03
FI892219A (en) 1989-05-09
PT86122A (en) 1987-12-01
DE3686422D1 (en) 1992-09-17
SE8502388L (en) 1986-11-15
EP0333704B1 (en) 1992-08-12
JP2511089B2 (en) 1996-06-26
DK170226B1 (en) 1995-07-03

Similar Documents

Publication Publication Date Title
US5090967A (en) Method and composition for providing an improved combustion in processes of combustion containing hydrocarbon compounds
US4073626A (en) Hydrocarbon fuel additive and process of improving hydrocarbon fuel combustion
SK284555B6 (en) Aqueous fuel for internal combustion engines and process for producing thereof
CA1139944A (en) Gasoline and petroleum fuel supplement
WO1998026027A1 (en) A liquid mixture for use in an apparatus for combustion enhancer and the method of manufacture thereof
RU2314334C1 (en) Additive compound to the combustion engine fuel
US4166724A (en) Fuel composition
CA1331917C (en) Method and a composition for providing an improved combustion in process of combustion containing hydrocarbon compounds
US5116390A (en) Catalytically enhanced combustion process
EP0397759A1 (en) Method for improving combustion in combustion engines.
CN108424795A (en) Novel environment friendly automobile exhaust detergent
US20040011302A1 (en) Method of reducing smoke and particulate emissions from steam boilers and heaters operating on liquid petroleum fuels
US7429281B2 (en) Method for manufacturing bio-diesel oil containing alkane compounds
CS272768B2 (en) Method of combustion improvement during combustion processes with hydrocarbon compounds combustion
PL152283B1 (en) Combustion of hydrocarbon fuels
WO2009002056A1 (en) Alcohol fuel and preparation thereof
US20060225339A1 (en) Process for producing low sulphur and high cetane number petroleum fuel
CA1089230A (en) Hydrocarbon fuel additive and process of improving hydrocarbon fuel combustion
KR820002350B1 (en) Method of combustion of hydrocarbon fuel
CA1334246C (en) Catalytically enhanced combustion process
RU2154185C1 (en) Environment-oriented method for heat generation
EP1686165A1 (en) Method for manufacturing bio-diesel oil containing alkane compounds
NO781146L (en) FUEL ADDITIVES.
Goodger Emissions from Hydrocarbon Fuel Utilisation
ITIS20010006A1 (en) OXYGEN ADDITIVE AND IMPROVING THE CETAN NUMBER FOR DIESEL FOR SELF-DRIVING AIMED TO INCREASE THE ENGINE YIELD

Legal Events

Date Code Title Description
REMI Maintenance fee reminder mailed
FPAY Fee payment

Year of fee payment: 4

SULP Surcharge for late payment
AS Assignment

Owner name: LEMITEC AS, NORWAY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LARSEN, OLE;REEL/FRAME:008006/0093

Effective date: 19960322

Owner name: LARSEN, OLE, AUSTRALIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LINDSTROM, ARNE;REEL/FRAME:008006/0090

Effective date: 19960311

AS Assignment

Owner name: VITALE MILJOINVESTERINGER AS, A NORWAY CORPORATION

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LINDSTROM, ARNE;REEL/FRAME:008094/0912

Effective date: 19950921

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 20040225

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362